#filename sys_use.py
import sys
print('命令行的参数为：')
for i  in sys.argv:
	print(i)
print('系统路径为',sys.path)
import os
print(os.getcwd())


## __name__
if(__name__ == '__main__'):
	print('主模块被调用')
else:
	print('主模块没被调用');